MAMP: Install Apache2 + PHP + MySQL

I never saw such an easy install on unix-based systems.
This applications just kicks ass.

I installed Apache2 + PHP 5.1.6 + MySQL 5.0.19 database in just a few clicks!

There is a widget available for stop/start servers from Dashboard. Kewl!
Check it out, it is called MAMP and it is for OS X: http://mamp.info/en/home/